So, I am planning to travel back to my country (which I’ve been away for a year already) to see my friends. However, my dad wouldn’t allow me because they’re planning to buy a house and also because they’ve been here for two years already and none of them has ever gone back to our country, while I was able to travel twice already. It seems unfair to my other siblings and to my dad whose dad, our grandfather, died last year and he wasn’t able to go on the funeral. I am not close to my parents so what could be a good way to convince my dad and my sisters to allow me to go on vacation and to borrow $1500?

Stop showing them your so selfish and greedy.
Come one its $1500 and their trying to move on and get all the way settled with a house they want.
Maybe if you stop asking and stuff,later on after they get the house and settle into it,your dad will give you money OR hey try this one,get a job =]